scholarly journals K+Λ(1405) photoproduction at the BGO-OD experiment

2020 ◽  
Vol 241 ◽  
pp. 01014
Author(s):  
Georg Scheluchin ◽  
Stefan Alef ◽  
Patrick Bauer ◽  
Reinhard Beck ◽  
Alessandro Braghieri ◽  
...  
Keyword(s):  
Decay Mode ◽  
Constituent Quark ◽  
Forward Direction ◽  
Magnetic Spectrometer ◽  
Exotic Meson ◽  
Preliminary Results ◽  
Large Aperture ◽  
Quark Structure ◽  
Quark Models

Since the discovery of the Λ(1405), it remains poorly described by conventional constituent quark models, and it is a candidate for having an “exotic” meson-baryon or “penta-quark” structure, similar to states recently reported in the hidden charm sector. The Λ(1405) can be produced in the reaction γp K+Λ(1405). The pure I=0 decay mode into Σ0π0 is prohibited for the mass-overlapping Σ(1385). Combining a large aperture forward magnetic spectrometer and a central BGO crystal calorimeter, the BGO-OD experiment is ideally suited to measure this decay with the K+ in the forward direction. Preliminary results are presented. *Supported by DFG (PN 388979758, 405882627)

On the constituent quark structure

1995 ◽  
Author(s):  
Adam Szczepaniak ◽  
Chueng-Ryong Ji ◽  
Stephen R. Cotanch
Keyword(s):  
Constituent Quark ◽  
Quark Structure

scholarly journals Renormalization approach to constituent quark models of quarkonium

2012 ◽  
Vol 85 (7) ◽  
Author(s):  
J. Segovia ◽  
D. R. Entem ◽  
F. Fernández ◽  
E. Ruiz Arriola
Keyword(s):  
Constituent Quark ◽  
Quark Models ◽  
Renormalization Approach

scholarly journals Hadronic Paschen-Back effect in P-wave charmonia under strong magnetic fields

2019 ◽  
Vol 49 ◽  
pp. 1960002
Author(s):  
Sachio Iwasaki ◽  
Makoto Oka ◽  
Kei Suzuki ◽  
Tetsuya Yoshida
Keyword(s):  
Magnetic Fields ◽  
Mass Spectra ◽  
Constituent Quark ◽  
Expansion Method ◽  
Wave Functions ◽  
P Wave ◽  
Strong Magnetic Fields ◽  
Mixing Ratios ◽  
Angular Momenta ◽  
Quark Models

The Hadronic Paschen-Back effect (HPBE) is a new phenomenon induced by the interplay between finite orbital angular momenta of hadrons and external strong magnetic fields. We review the HPBE in P-wave charmonia and show its mass spectra, deformed wave functions, and mixing ratios, which are evaluated by the constituent quark models in a magnetic field and the cylindrical Gaussian expansion method.

scholarly journals Constituent quark models for hadronic systems

2019 ◽  
Vol 199 ◽  
pp. 05011
Author(s):  
Zahra Ghalenovi
Keyword(s):  
Constituent Quark ◽  
Potential Models ◽  
Quark Models ◽  
Three Body

In this work we introduce two different potential models for hadronic systems such that the QCD concepts of the quark-quark and quark-antiquark interactions be satisfied. We present the simple methods to solve two- and three-body equation of meson and baryon systems respectively. The introduced models are studied in the relativistic and non-relativistic limits.

scholarly journals LHCb pentaquarks in constituent quark models

2017 ◽  
Vol 764 ◽  
pp. 207-211 ◽  
Author(s):  
P.G. Ortega ◽  
D.R. Entem ◽  
F. Fernández
Keyword(s):  
Constituent Quark ◽  
Quark Models

scholarly journals Dynamical test of constituent quark models withπNreactions

2000 ◽  
Vol 61 (6) ◽  
Author(s):  
T. Yoshimoto ◽  
T. Sato ◽  
M. Arima ◽  
T.-S. H. Lee
Keyword(s):  
Constituent Quark ◽  
Quark Models

scholarly journals Six-quark structure of d*(2380) in a chiral constituent quark model

2017 ◽  
Vol 96 (1) ◽  
Author(s):  
Qi-Fang Lü ◽  
Fei Huang ◽  
Yu-Bing Dong ◽  
Peng-Nian Shen ◽  
Zong-Ye Zhang
Keyword(s):  
Quark Model ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Quark Structure

NONPERTURBATIVE QCD, THE CONSTITUENT QUARK MODEL AND CONFINEMENT

1988 ◽  
Vol 03 (01) ◽  
pp. 203-223 ◽  
Author(s):  
B.H.J. MCKELLAR ◽  
M.D. SCADRON ◽  
R.C. WARNER
Keyword(s):  
Quark Model ◽  
Chiral Symmetry ◽  
Constituent Quark ◽  
Chiral Symmetry Breaking ◽  
Constituent Quark Model ◽  
The Other ◽  
Hadron Structure ◽  
Potential Models ◽  
Dynamical Breaking ◽  
Quark Models

There are currently two major QCD-inspired quark models for hadrons. Nonrelativistic potential models and ultrarelativistic bag models have both had their successes. In this paper we present the case for an alternative quark picture, emphasizing the nonperturbative dynamical breaking of chiral symmetry in QCD. The relativistic constituent quark model which emerges recovers the main results of the other approaches, and also holds better prospects for the calculation of relativistic phenomena, and for the eventual understanding of the interrelations between chiral-symmetry breaking, hadron structure and confinement.

scholarly journals Double Parton Distributions in Light-Front Constituent Quark Models

2014 ◽  
Vol 56 (6-9) ◽  
pp. 515-521 ◽  
Author(s):  
Matteo Rinaldi ◽  
Sergio Scopetta ◽  
Marco Traini ◽  
Vicente Vento
Keyword(s):  
Constituent Quark ◽  
Light Front ◽  
Parton Distributions ◽  
Quark Models
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